1. Import Hibernate Template Project

• Downloads Hibernate JARs in Maven local repo

2. Configure Hibernate

• Copy (or create) hibernate.cfg.xml in <resources> directory
• Configure database settings

Important Hibernate Property:

<property name="hibernate.hbm2ddl.auto">update</property>

This property enables Hibernate to:

• Create a NEW table if none exists for the POJO (Entity class)
• Otherwise continue with the existing table

3. Create HibernateUtils Class

• Create singleton instance of the SessionFactory (SF) using a static init block

Key APIs:

1. Create Configuration instance:

   Configuration config = new Configuration();
   

2. Configure it:

   public Configuration configure() throws HibernateException
   

3. Build SessionFactory:

   public SessionFactory buildSessionFactory() throws HibernateException
   

   • Note: SessionFactory extends AutoCloseable

4. Write a Tester

• Create main class to test the initialization of the Hibernate framework

5. Create POJO Class

• Create Hibernate managed Entity class (regular POJO class)
• Declare the class as an entity using either:
  • XML tags (e.g., User.hbm.xml - one file per entity)
  • OR
  • JPA annotations from jakarta.persistence package:
    • Mandatory annotations:
      • @Entity - class level annotation
      • @Id - field level or getter (property) level annotation

6. Add Mapping Entry per Entity